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https://github.com/tailscale/tailscale.git
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Mike Jensen
0188b38666
Prior to this change there were two problems with our fuzzing for oss-fuzz: 1. There was an issue if the fuzzing spanned two files (mingled with the testing). 2. The fuzzing needs to be part of the implementation package (no _test packages). This change fixes that by moving all package fuzzing into a common `fuzz_test.go` within the package. Updates https://github.com/tailscale/corp/issues/46608 Change-Id: I0b95edcd0df946f723eea32f575c679214c0b202 Signed-off-by: Mike Jensen <mikej@tailscale.com>
61 lines
1.3 KiB
Go
61 lines
1.3 KiB
Go
// Copyright (c) Tailscale Inc & contributors
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// SPDX-License-Identifier: BSD-3-Clause
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package resolver
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import "testing"
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func FuzzClampEDNSSize(f *testing.F) {
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// Empty DNS packet
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f.Add([]byte{
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// query id
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0x12, 0x34,
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// flags: standard query, recurse
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0x01, 0x20,
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// num questions
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0x00, 0x00,
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// num answers
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0x00, 0x00,
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// num authority RRs
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0x00, 0x00,
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// num additional RRs
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0x00, 0x00,
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})
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// Empty OPT
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f.Add([]byte{
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// header
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0xaf, 0x66, 0x01, 0x20, 0x00, 0x01, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x01,
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// query
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0x06, 0x67, 0x6f, 0x6f, 0x67, 0x6c, 0x65, 0x03, 0x63, 0x6f,
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0x6d, 0x00, 0x00, 0x01, 0x00, 0x01,
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// OPT
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0x00, // name: <root>
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0x00, 0x29, // type: OPT
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0x10, 0x00, // UDP payload size
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0x00, // higher bits in extended RCODE
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0x00, // EDNS0 version
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0x80, 0x00, // "Z" field
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0x00, 0x00, // data length
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})
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// Query for "google.com"
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f.Add([]byte{
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// header
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0xaf, 0x66, 0x01, 0x20, 0x00, 0x01, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x01,
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// query
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0x06, 0x67, 0x6f, 0x6f, 0x67, 0x6c, 0x65, 0x03, 0x63, 0x6f,
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0x6d, 0x00, 0x00, 0x01, 0x00, 0x01,
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// OPT
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0x00, 0x00, 0x29, 0x10, 0x00, 0x00, 0x00, 0x80, 0x00, 0x00,
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0x0c, 0x00, 0x0a, 0x00, 0x08, 0x62, 0x18, 0x1a, 0xcb, 0x19,
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0xd7, 0xee, 0x23,
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})
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f.Fuzz(func(t *testing.T, data []byte) {
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clampEDNSSize(data, maxResponseBytes)
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})
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}
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